OEM AR 2600 psi Power Pressure Washer Water Pump fits Troy-Bilt 020344 020344-0 Specs - Maximum Pressure: 2600 PSI. Maximum Flow: 2.2 GPM. Shaft Size: 7/8". 3 Bolt Pattern: 7 11/16” x 6 3/16” x 6 7/16” from center to center for each bolt hole. Maximum Fluid Temperature: 140° F. Inlet Type: 3/4" GHA. Outlet Type: 22mm x 14mm. Oil Capacity: 2.29oz. Refer to images 2 and 3 for more information Includes - (1) Vertical Pressure Washer Pump, SRMW22G26-EZ-SX with Thermal Release Valve & Chemical Injector (both come installed); comes as shown in the first image (does NOT include engine shaft key or bolts) This pump is for vertical gas engine driven units. This pump mounts directly on to the engine shaft by using a keyed hollow shaft connection system. The mounting flange provides a convenient connection to most 7/8” diameter shaft vertical gas engines with at least 5HP. This is an EZ-SX Rear-Facing (Left-Handed) SX Pump, designed with the outlet positioned at the back. Do NOT run above max PSI rating. Doing so can result in damage to the pump (not covered by warranty) and/or serious bodily injury Please confirm your OEM part number, along with your unit's model, spec, type/code, and serial number to ensure this is the correct part for your unit. This part may replace multiple OEM numbers, so verifying every detail is important for a proper fit. If you're unsure or have questions about compatibility, feel free to contact us!